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Answer» Answer: MAGNIFICATION of MICROSCOPE = 100 Average thickness of human hair observed through microscope over 20 observations = 3.5 mm → 3.5 × 10^-3 m According to definition of magnification, Magnification = Observed thickness / Real thickness 100 = 3.5 × 10^-3 / Real Thickness Real thickness = 3.5 × 10^-3 / 100 Real thickness = 35 × 10^-6 m Real thickness = 35 úm :. The thickness of human hair ESTIMATED by the STUDENT is 35 microns.

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Answer:

MAGNIFICATION of MICROSCOPE = 100

Average thickness of human hair observed through microscope over 20 observations = 3.5 mm

→ 3.5 × 10^-3 m

According to definition of magnification,

Magnification = Observed thickness / Real thickness

100 = 3.5 × 10^-3 / Real Thickness

Real thickness = 3.5 × 10^-3 / 100

Real thickness = 35 × 10^-6 m

Real thickness = 35 úm

:. The thickness of human hair ESTIMATED by the STUDENT is 35 microns.

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